Crude oil futures settled higher in after-hours trading on Monday after President Trump dismissed Iran's latest peace proposal and declared a fragile month-long ceasefire to be on "life support," stoking fears of a prolonged blockade in the Strait of Hormuz.
Front-month West Texas Intermediate crude futures rose by 2.75% to $98.25 per barrel, while Brent futures were up 3.37% to $104.70/bbl.
Trump is reportedly meeting with his national security team to discuss next steps in the Middle East conflict, including possibly resuming military action after he rejected Iran's response to a US peace proposal.
"I would call it the weakest, right now, after reading that piece of garbage they sent us, I didn't even finish reading it," Trump told reporters at the White House. "I would say the ceasefire is on massive life support."
US President rejected Iran's demands for a total end to Washington's naval blockade and war reparations, calling the response "stupid" and "unacceptable."
The continued closure of the Hormuz since late February has severely disrupted global flows of crude, fuels, and gas, with the International Energy Agency calling it the biggest supply shock in history.
Meanwhile, Israeli Prime Minister Benjamin Netanyahu said on Monday that the conflict was "not over," raising fears that tensions in the Middle East could escalate again and further threaten energy supplies.
"After briefly trading down to USD 96 last week on renewed hopes the strait would reopen, Brent has rebounded above USD 105," Saxo Bank strategists said, citing Morgan Stanley analysts who described the Middle East conflict as a "race against time."
Iran has called for an end to the war on all fronts, including Lebanon, where Israel is fighting Iran-backed Hezbollah militants. Tehran also demanded compensation for war damage and resumption of Iranian oil sales.
ING strategists said the oil market remains heavily headline-driven, with prices surging after Trump rejected Iran's latest peace plan.
Iranian foreign ministry spokesman Esmail Baghaei said Tehran's proposal for ending the recent war was reasonable, as the US continues to insist on "unreasonable demands" shaped by the Israeli regime.
On Monday, the country's Speaker of Parliament, Mohammad Bagher Ghalibaf, said Iran's armed forces are battle-ready to deliver a crushing, well-deserved response to any aggression.
Tehran reportedly deployed small submarines to act as an "invisible guardian" of the Hormuz amid a series of rejected peace deals with the US.
Kpler said that 53 vessels operated by the world's top 10 container shipping lines entered the Persian Gulf before the outbreak of conflict, of which 79% are unable to exit.